Solarweave fabrics are specially manufactured to block UV radiation from the sun. These tightly woven sun protective fabrics have sunblock milled right in the fabric itself! Tested by an independent laboratory and shown to provide SPF 30+/UPF 50+ protection even after:
40 launderings (equivalent to 2 years of wear and tear)
100 hours of accelerated ultraviolet exposure in Florida humidity and temperature
100% Non-irritating for even the most sensitive skin.